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BMI160 IMU Sensor

Measure linear acceleration, angular rate, and temperature from BMI160 sensor

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  • Library:

  • Simulink Support Package for Raspberry Pi Hardware / Sensors / IMU Sensors

Description

The BMI160 block outputs the values of linear acceleration and angular rate along x-, y- and z- axes as measured by the BMI160 sensor connected to Raspberry Pi™ board. The block also outputs the temperature as read by the BMI160 sensor. If you connect the BMM150 as a secondary sensor to BMI160, the BMI160 block also outputs magnetic field along x-, y- and z- axes as measured by the BMM150 sensor.

Ports

Output

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Linear acceleration (in m/s2) measured by BMI160 sensor connected to Raspberry Pi board, along the x-, y- and z- axes, specified as a row vector [x,y,z].

Dependencies

This output port appears only if you select the Acceleration (m/s2) parameter.

Data Types: double

Angular rate (in rad/s) measured by BMI160 sensor connected to Raspberry Pi board, along the x-, y- and z- axes, specified as a row vector [x,y,z].

Dependencies

This output port appears only if you select the Angular rate (rad/s) parameter.

Data Types: double

Magnetic field strength (in µT) measured by a BMM150 sensor that is connected as a secondary sensor to BMI160 sensor, along the x-, y- and z- axes, specified as a row vector [x,y,z].

Dependencies

This output port appears only if you select the Enable secondary magnetometer and Magnetic Field (µT) parameters.

Data Types: double

Temperature (in ℃) measured by BMI160 sensor connected to Raspberry Pi board.

Dependencies

This output port appears only if you select the Temperature (℃) parameter.

Data Types: double

Status of acceleration 0 indicates that the data read is new and 1 indicates that the data read is not new.

Dependencies

This output port appears only if you select the Acceleration Status parameter.

Data Types: int8

Status of angular rate 0 indicates that the data read is new and 1 indicates that the data read is not new.

Dependencies

This output port appears only if you select the Angular Rate Status parameter.

Data Types: int8

Status of magnetic field 0 indicates that the data read is new and 1 indicates that the data read is not new.

Dependencies

This output port appears only if you select the Magnetic Field Status parameter.

Data Types: int8

Parameters

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Main Tab

The I2C module to be used for communication to the BMI160 sensor.

The I2C address used by BMI160 sensor communicating with the Raspberry Pi board.

If this option is selected, an interrupt is generated on pin INT1 or INT2 of the sensor when data is ready, allowing you to trigger other subsystems to perform any action.

Note

Selecting this parameter (Enable data ready interrupt) overrides the availability of other status values at the output. The selection of parameters for other status outputs (Acceleration status, Angular rate status, and Magnetic field status) is also disabled.

Select the pin on which the data ready interrupt, which can be used by the Raspberry Pi board, gets generated on the sensor.

Dependencies

This parameter appears only if you select the Enable data ready interrupt parameter.

If this option is selected, the block can read magnetometer data from a BMM150 sensor that is connected as a secondary sensor to BMI160.

The I2C address used by BMM150 sensor connected as a secondary sensor to BMI160 sensor.

Dependencies

This parameter appears only if you select the Enable secondary magnetometer parameter.

Select this parameter to set Acceleration as one of the output ports.

Select this parameter to set Angular Rate as one of the output ports.

Select this parameter to set Magnetic Field as one of the output ports.

Select this parameter to set Temperature as one of the output ports.

Select this parameter to set Acceleration Status as one of the output ports.

Select this parameter to set Angular Rate Status as one of the output ports.

Select this parameter to set Magnetic Field Status as one of the output ports.

Specify the output data type for the values read from BMI160 sensor. The default data type for Raspberry Pi board is single. Use this parameter to change the values to double, if required.

Specify how often this block reads the data from the BMI160 sensor. When you set this parameter to -1, Simulink determines the best sample time for the block based on the block context within the model.

Advanced Tab

Select the full scale for measuring linear acceleration (the range of acceleration that the sensor needs to measure).

Select the output data rate at which accelerometer data is sampled, which also determines the bandwidth.

Select this option to enable the low-pass filter for the acceleration values read from BMI160 sensor.

Select the filter mode for low pass filter for accelerometer values. The 3dB Cutoff frequency of the accelerometer depends on the value of this parameter and the ODR that you selected using the Accelerometer output data rate parameter.

Select the full scale for measuring angular rate (the range of angular rate that the sensor needs to measure).

Select the output data rate at which gyroscope data is sampled, which also determines the bandwidth.

Select this option to enable the low-pass filter for the angular rate values read from BMI160 sensor.

Select the filter mode for low pass filter for gyroscope values. The 3dB Cutoff frequency of the gyroscope depends on the value of this parameter and the ODR that you selected using the Gyroscope output data rate parameter.

Select the output data rate at which magnetometer data is sampled.

Version History

Introduced in R2021b